Hey everyone,
First of all, I have posted and asked for help on apple discussions but it has been more than 48 hours and no one replied. If someone here can help me I promise I will include the solutions on the apple discussions post and link to this thread.
UPDATE: This might be solved soon, since I have gotten a response on the apple discussion thread. I will update this thread once I solved my problems. In retrospect, sorry for my impatience and the crosspost.
I have also found this thread on macrumors which basically describes the same problem. The difference is that his problem evolved after a failed frozen partitioning resizing process and I have done no such thing.
I have tried to understand a little more about the fdisks and gdisks outputs meaning but I could still use a little help. I am smart with computers but I have never really got my head around partitioning tables, sectors etc.
What happened in a nutshell:
1. I created a second 60GB partition for Windows 7 with Bootcamp
2. I used this method with virtualbox to install windows on the Bootcamp partition.
Note: Windows created another 100MB "System Reserved" partition which might be the origin of my problem.
3. I shut down virtualbox and tried to boot my macbook into windows with alt/options key but there was no other OS or partition to chose.
4. Back in MacOS I noticed the partition thats 60GB is now called System Reserved and the Bootcamp partition disappeared.
What I would like to do is recover the Bootcamp partition and make it bootable.
However, I think the first step would be understanding why it disappeared and why the System Reserved partition has taken its place and is now 60GB instead of 100MB.
Has anyone got an idea?
I dont know the right words to say this properly but I am assuming a partition can't just disappear and be replaced by another. I guess that partitions somehow cant be read and interpreted by any command like diskutil gdisk etc. and that the bootcamp partition is still where it used to be (disk0s3).
This is why I am hesitant to reformat the current disk0s3 System Reserved partition and start the windows intstallation all over again. I think that would mess up things completely won't it?
[doublepost=1544147602][/doublepost]These are my terminal outputs
[doublepost=1544147959][/doublepost]
First of all, I have posted and asked for help on apple discussions but it has been more than 48 hours and no one replied. If someone here can help me I promise I will include the solutions on the apple discussions post and link to this thread.
UPDATE: This might be solved soon, since I have gotten a response on the apple discussion thread. I will update this thread once I solved my problems. In retrospect, sorry for my impatience and the crosspost.
I have also found this thread on macrumors which basically describes the same problem. The difference is that his problem evolved after a failed frozen partitioning resizing process and I have done no such thing.
I have tried to understand a little more about the fdisks and gdisks outputs meaning but I could still use a little help. I am smart with computers but I have never really got my head around partitioning tables, sectors etc.
What happened in a nutshell:
1. I created a second 60GB partition for Windows 7 with Bootcamp
2. I used this method with virtualbox to install windows on the Bootcamp partition.
Note: Windows created another 100MB "System Reserved" partition which might be the origin of my problem.
3. I shut down virtualbox and tried to boot my macbook into windows with alt/options key but there was no other OS or partition to chose.
4. Back in MacOS I noticed the partition thats 60GB is now called System Reserved and the Bootcamp partition disappeared.
What I would like to do is recover the Bootcamp partition and make it bootable.
However, I think the first step would be understanding why it disappeared and why the System Reserved partition has taken its place and is now 60GB instead of 100MB.
Has anyone got an idea?
I dont know the right words to say this properly but I am assuming a partition can't just disappear and be replaced by another. I guess that partitions somehow cant be read and interpreted by any command like diskutil gdisk etc. and that the bootcamp partition is still where it used to be (disk0s3).
This is why I am hesitant to reformat the current disk0s3 System Reserved partition and start the windows intstallation all over again. I think that would mess up things completely won't it?
[doublepost=1544147602][/doublepost]These are my terminal outputs
Code:
sudo gpt -r -vv show disk0
gpt show: disk0: mediasize=500107862016; sectorsize=512; blocks=976773168
gpt show: disk0: Suspicious MBR at sector 0
gpt show: disk0: Pri GPT at sector 1
gpt show: disk0: Sec GPT at sector 976773167
start size index contents
0 1 MBR
1 1 Pri GPT header
2 32 Pri GPT table
34 6
40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
409640 857421888 2 GPT part - 7C3457EF-0000-11AA-AA11-00306543ECAC
857831528 1944
857833472 118939648 3 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
976773120 15
976773135 32 Sec GPT table
976773167 1 Sec GPT header
Code:
sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 60801/255/63 [976773168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>
2: FF 1023 254 63 - 1023 254 63 [ 409640 - 857421888] Xenix BBT
3: 0B 1023 254 63 - 1023 254 63 [ 857833472 - 118939648] Win95 FAT-32
4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
Code:
sudo gdisk -l /dev/disk0
GPT fdisk (gdisk) version 1.0.4
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Disk /dev/disk0: 976773168 sectors, 465.8 GiB
Sector size (logical): 512 bytes
Disk identifier (GUID): 6DEBDAF3-548A-4F2D-AE58-D4FBDE562F80
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 976773134
Partitions will be aligned on 8-sector boundaries
Total free space is 1965 sectors (982.5 KiB)
Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI System Partition
2 409640 857831527 408.9 GiB AF0A Mac OS X SSD
3 857833472 976773119 56.7 GiB 0700
Code:
diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk1 439.0 GB disk0s2
3: Microsoft Basic Data System Reserved 60.9 GB disk0s3
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +439.0 GB disk1
Physical Store disk0s2
1: APFS Volume Mac OS X SSD 185.1 GB disk1s1
2: APFS Volume Preboot 22.2 MB disk1s2
3: APFS Volume Recovery 512.1 MB disk1s3
4: APFS Volume VM 4.3 GB disk1s4
Last edited: